Bunn 20138.1000 Coffee and Tea Filters are perfect for busy cafes and diners that are consistently brewing coffee for their patrons. Boasting a large capacity and a special grade of paper construction, this filter ensures each cup of coffee is free of coffee grounds for a smooth brew every time. This gourmet size coffee filter is made of a special paper grade that helps release the delicious taste and delightful aroma of your special blends. Your patrons will be able to truly appreciate the unique flavors your coffee has to offer when you use this filter. This 1.5 Gal. coffee filter can be used with a variety of coffee brewers and is perfect for high-volume venues. Overall Measure x Base Diameter (Inches) is 13 3/4 in. x 5 1/4 in. This coffee filter features a semi-permeable surface in which it is permeable by liquids, but not solids. Plus, it will not disintegrate when wet, ensuring that the grounds stay out of your coffee and in the filter where they belong.